Introduction

The MDS Big Mother, hull number SSBN-255, is the arsenal submarine for the MDA Naval Corps, it's the one of the several super submarine in their inventory and also an arsenal missile platform. It's large, chonky, and widely thick size makes it capable to carry a huge number of submarine-launched cruise missiles. A modified and modernized version of Celestial Empire Type 100-class arsenal submarine which was acquired by the MDA, this submarine has an ability to launch some units of SLUAVs (Submarine-Launched Unmanned Aerial Vehicles). The size of the submarine as well, also the absurdly massive oxygen supply, making it being utilized as an underwater mobile HQ for the MDA.

Overview - Type 100 arsenal submarine

The Type 100 "Sun Tzu" is the class of the arsenal submarine of the Celestial Empire People's Navy. Due to it's size, it has an ability to place a huge number of missiles in two of the three hulls of the submarine. 1 modified submarine was delivered to the MDA Naval Force.

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History

Celestial Empire variant (CN Type 100)

The building of the super submarine began in late 2020, the Celestial Empire People's Navy was planning to build a "massive super submarine" that is surpass the Red Bear Navy's Typhoon-class & Eagle Union Navy's Ohio-class ballistic nuclear submarine and capable to carry a huge loads of submarine-launched cruise missiles. As in 2030, the submarine was launched and in the same year, it was laid down and commissioned for service.

Thanks to it's absurdly massive size, the Type 100-class submarine features a lot of facilities and workplace inside her, it can even be operated as an underwater mobile HQ for the navy. Expect that you can even found a literal swimming pool inside, just like in the Typhoon-class submarine. A large sleeping quarters for the crews, also making it as an "underwater mobile hotel or dormitory" as well.

The submarine is equipped with the modified cluster-type DF-17 hyper sonic cruise missile that can be launched underwater, and also has 40 VLS launchers that can loads some submarine-launched cruise missiles or ballistic missiles, making it as an arsenal ship or floating missile platform that can dive underwater, bringing death below the depth. The submarine also equipped with Yu-7 torpedo by default, and has 8 torpedo launchers. It has a gigantic amount of durability, as well with the large and very sufficient oxygen supply for extended underwater mission, making it a real sea monster.

However, despite being a superior and powerful in addition with the high oxygen pool, the Type 100 has some disadvantages. Not only being slow speed and has worse maneuverability due to it's massive weight and size, the major issue of the submarine is that she has massive oxygen drain, making the oxygen maintenance operators and engineers have to always keep their eyes on her oxygen system to fix and taking care with the oxygen, because it seems and it was revealed that the Type 100 is using a sort of outdated oxygen system.

MDA variant (MDS Big Mother)

The MDA Naval Corps has only 1 modified Type 100 arsenal submarine delivered in October 2041, designated as Type 100E, with an improved technology and specification. The submarine was commissioned and operated as underwater mobile headquarter, named and designated it as "MDS Big Mother", hull number "SSBN-255".

On the improved version, the oxygen system has been upgraded, now using the even more advanced oxygen system that now has an exceptionally slow drain time, basically surfacing has no other purpose than gaining oxygen time. The MDA variant is equipped with YJ-18B SLBMs in each VLS, a best choice of underwater cruise missile. The default Yu-7 torpedo were replaced by Black Shark torpedo, a heavyweight yet affordable torpedo that can deals major damage to any target. An interesting new feature and modification on the improved MDA variant is it's special ability: the submarine can launch some drones like SLUAVs (Submarine-Launched Unmanned Aerial Vehicles), MDS Big Mother is equipped with launchable Cormorant SLUAVs, Bringing death message from both air and underwater.

Ships in class

The first submarine entered service in the Celestial Empire People's Navy in 2030, and the class remains in use until today; there are 2 original Type 100 Sun Tzu-class vessels in active service with the Celestial Navy, while a new Improved Type 100 submarine is being delivered through the 2041 to MDA Naval Corps:

List of Type 100 submarines

Celestial Empire People's Navy (Type 100)

• CN Type 100 Sun Tzu (Active, in service)
• CN Type 101 Lin Lin (Active, in service)

Mouse Defender Allies Naval Corps (Type 100E)

• MDS Big Mother (SSBN-255) (Active, in service, operated as underwater mobile HQ)

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Features:

• Working diving system
• Modern Warship-ish weapons.
• Custom weapons.
• Launchable Weapon UAVs
• Flares
  

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Disadvantages:

• You cannot dive deeper in order to avoid the weapons to disappear. But the good thing is, you can peek through the periscope by using Cockpit View mode.
• Exceptionally slow mobility due to it's large size.

Manual instruction:

• Throttle = Move forward.
• Brake = Brake.
• S = Reverse (set throttle to 0 first).
• A & D = Turn left & right.
• VTOL Down = Submerge.
• VTOL Up = Surfacing.
• V = Launch flares.

Armaments

Missile Battery

• 40x YJ-18B (Submarine-launched cruise missile)
• 9x DF-17 (Hyper sonic cruise missile)

Torpedo

• 8x Black Shark Torpedo (Heavyweight torpedo, do major damage to any target)

Weapon UAV

• 2x Cormorant SLUAV (Submarine-launched unmanned aerial vehicle)
  

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Missile Battery Control

• LAlt = Fire missile (must lock-on target).

Guidelines

There are two types of missiles, but each missiles has their own advantages and liability. Use each missile to destroy each targets at various distance and range. Hit your target with the appropriate weapon for effectivity.

YJ-18B

The YJ-18B is the primary missile and weapon. It's a default weapon to destroy surface targets at any various distance, very effective at any range but ineffective at minimum range below 1.5m

Demonstration

It is best to not destroy your target within the range below 1.5m, the missile will be ineffective and usually miss it's target.

The range below 0.9m is trash, it cannot even hit your target.

DF-17

This DF-17 is the special weapon/SP weapon, or referred as secondary missile. This version is a cluster modified submarine-launched hyper sonic cruise missile based on it's original version. It has a unique mechanism and a great speed. It can be fired continuously, or just single shoot.

• Hold LAlt = Fire multiple DF-17 (must lock-on target, release to stop firing).
• Press LAlt once = Fire single DF-17 (must lock-on target)

This SP weapon is target-guided rather than fire and forget, so you have to keep maintaining lock on your selected target. Switch target to divert and change the direction where your missile is supposed to hit.

However, despite it's amazing speed, the secondary missile is really ineffective at short or normal range. The missile is effective for a long range, the best and minimum range of effectivity is at 5.5m and above.

Demonstration

The range below 5,5 is ineffective. The missile will always miss it's target probably due to it's quick speed.

At range 3.0m and below is an absolute trash. In conclusion, it is not the best way to use DF-17 for close quarter battle. It is better for long range missile instead.

YJ-18B for any range, and DF-17 only for long range.

Torpedo Control

• The usage of torpedoes can be manually launched, or can be lock on target.
  
  
  
  • Select 'Manual' type to use manual launch mode, manually launch the torpedo without locking any target, will fires straight unguided.
  
  
  • Select 'Lock On' type to use lock on target mode, target-guided, will seek and destroy the locked target.
  
  

Weapon UAV Control

A specialized weapon UAV designed to launched from the submarine. It can be launched while underwater. It has a high speed and absolutely lethal armaments. The SLUAVs can defend the submarine by firing on hostile units or act as surveillance drones for reconnaissance. Once launched, there is no way to place it back to the sub. It can be used for loitering munition or kamikaze drone as well.

• Control like normal, but lack of reticle and HUD makes it harder to navigate it's target.

Weapon UAV armament

Main armament = Pulse Laser (Lethal, penetrates the armor of it's target).

Startup

• AG7 = Activate UAV, disable/enable the vessel system, control the drone.
• AG2 = Enable and launch UAV 1
• AG3 = Enable and launch UAV 2

It is best to activate AG7 to control the drone, in order to not making your submarine keep stay on place and not moving anywhere.

Take-off

• Simply press the launch button.

Controls

• Normal flight control.
• Spacebar = Fire weapons.

The UAV is really fast, you might have to play with the throttle and brake control.

It can be used as kamikaze drone. Just simply crash yourself to the target and it would goes boom. It is really tricky to do than you think due to the drone's high speed.

Once launched, there is no way to place it back to the submarine. It is better to leave it away or sacrifice it, use it as loitering munition is the best option.

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On voyage, front quarter view

Underwater, rear quarter view

The periscope

DF-17 on standby

Fires cluster DF-17

Fires cluster DF-17 underwater

Fires torpedo underwater

Cormorant SLUAV, front quarter view

Rear view quarter of the Cormorant

Cormorant's pulse laser cannon

SLUAV dogfighting an enemy Su-57

SLUAV attacking the enemy ship

SLUAV commencing kamikaze attack

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Trivia

General

• This ship is never exist in real life; The ship first made its debut into the public from an April Fools post by a site called Naval News.

MDA

• The submarine namesake was named after a character from One Piece, Big Mom, even one of the Celestial Navy version of this submarine is named 'Lin Lin", also a name taken from the character's real name, Charlotte Linlin.
• The name "Big Mother" leads to the submarine's wide and massive size, and the functionality as the mothership or mobile HQ.
• The Submarine is the one of the several known massive-sized vessel owned in MDA inventory.
• The SLUAV is based on Lockheed Martin Cormorant, a cancelled real life SLUAV project developed by Lockheed Martin's Skunk Works research facility until 2008.

Credits:

• JesusChrist for the Funky Trees code sample used for the DF-17 launcher
  

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MDA underwater mobile base, near the MDA island base